baber/WOPTO huggingface dataset:
Patent CA-2031611-C (CA)
Title: Process for increasing the direct esterification reaction rate of a diacid with a glycol
Inventor: LOWE DAVID J
IPC: C08G63/16
Filed: 1990-12-05
Granted: 2001-05-08
Abstract: A process for increasing the direct esterification reaction rate between a diacid and 1,4-butanediol and for directly esterifying greater than 95% of the acid ends of the diacid by mixing in any order the diacid, the 1,4-butanediol and a catalyst compound selected from organo-titanium, organo-tin, and organo-zirconium compounds, to form a reaction mixture wherein the ratio of diol:diacid is at least 2:1 and then reacting the reaction mixture at an average temperature ranging between 190°C to 240°C for a period of time no longer than sixty minutes. The same process may be followed substituting ethylene glycol for 1,4-butanediol, provided the catalyst . compound is added neat, further provided that the average reaction temperature ranges from 190°C to 200°C, and also provided that the reaction mixture be reacted for a period of time no longer than seventy minutes. The product resulting from this process may be polycondensed or further treated to form a high molecular weight polymer.
Patent CA-2032061-C (CA)
Inventor: OREGLIA AURELIO
IPC: A61F5/445
Filed: 1990-12-12
Granted: 2001-07-24
Abstract: The invention provides a sheet material which comprises a non-woven plastics film and bonded thereto without an adhesive, a barrier film; the sheet material is especially useful for the production of ostomy bags.
Patent CA-2032899-C (CA)
Title: Process for the preparation of fire-retardant expandable thermoplastic beads
Inventor: SONNENBERG FRED M
IPC: C08K5/06
Filed: 1990-12-20
Granted: 2002-03-19
Abstract: Fire-retardant expandable vinyl aromatic polymer beads are prepared by an aqueous suspension method whereby a bromophenyl allyl ether fire-retardant agent and a volatile aliphatic hydrocarbon foaming agent are incorporated into particles of a thermoplastic such as polystyrene. The beads are useful in the preparation of molded foam articles having excellent resistance to flame.
Patent CA-2033317-C (CA)
Title: Polyimide resins prepared by addition reactions
Inventor: SERAFINI TITO THOMAS
IPC: C07D405/14
Filed: 1990-12-27
Granted: 1997-02-11
Abstract: Polyimides having a high thermal and oxidative stability are prepared by reacting a mixture of monomers comprising (a) a dialkyl, trialkyl, or tetraalkylester of an aromatic tetracarboxylic acid, (b) an aromatic diamine, and (c) an end cap compound.  The ratio of (a), (b), and (c) is chosen so that upon heating the mixtures, low molecular weight prepolymers are formed, the prepolymers having only one end cap radical and being suitable for chain extension and crosslinking to form high molecular weight, thermally stable polyimides.  Upon heating, the prepolymers form polyimide resins, which can have Tg in excess of 600°F and superior physical properties.
Patent CA-2035476-C (CA)
Title: Process for the production of a lumpy meat emulsion product
Inventor: HORNIG ROLF
IPC: A23L13/60
Filed: 1990-10-01
Granted: 1997-09-30
Abstract: Process for producing a lumpy meat emulsion product, in which the starting materials are processed to a meat emulsion at temperatures below 55.degree.C, in which the meat emulsion is forced through a gap between the plates of the high speed emulsifier into a process tube and rapidly heated to 40 to 75.degree.C, the proteins contained in the starting materials largely having an animal origin and having different coagulation behaviour characteristics as regards temperature and time.
Patent CA-2043330-C (CA)
Title: Method and article for restraining extrusion of feed spacers and circumferential expansion in spiral filtration modules
Inventor: FAGUNDES CARLOS A
IPC: B01D63/00
Filed: 1991-05-27
Granted: 1996-10-08
Abstract: An ultrafiltration module (10) and method of constructing same is the subject of the present invention. The module (10) comprises a permeate collector tube (12) and one or more membrane leaves (16) wound around the tube (12) together with a feed channel spacer (18) so as to present spaced layers of membrane leaves or envelopes that are contacted by fluid flowing axially through the module (10) in the channel provid-ed by the feed spacer screen (18). The feed spacer screen (18) projects beyond the terminal ends of the leaves (16) to present an open mesh outerwrap screen (20) circumscribing the wound leaves (16). A plurality of restraining bands (22) are provided in longitudinally spaced relationship along the length of the module (10). These bands (22) are designed to hold the entire module assembly (10) in tight spiral relation-ship. Preferably, the bands (22) are constructed of heat shrinkable material and are thus secured in place and tight-ened by the application of heat. After the restraining bands (22) are in place, a bypass screen (24) also of open mesh configuration is wrapped around the outerwrap (20) and the re-#training bands (22) and secured by overlapping it onto itself and fusing the overlapped portion.
Patent CA-2043737-C (CA)
Title: Endarterectomy catheter and method of use thereof
Inventor: HALLIBURTON ALEXANDER GEORGE
IPC: A61B19/00
Filed: 1991-06-03
Granted: 1999-04-27
Abstract: An   endarterectomy   catheter   for   removing obstructions  from an artery comprises  a  cylindrical housing, the housing having an opening across which a primary shear is movable. The primary shear is razor sharp and cylindrical and movable by means of a cable and trigger backward and forward within the housing to excise obstructions that protrude into the opening. A guide wire positions the catheter in an artery.         The edge of the housing at the opening may be sharp to grip the obstruction and to assist in the cutting action of the primary shear. The shear is hollow and  collects  debris  from  the  excised  obstruction. Openings in the housing allow blood to pass through the body.     A method of removing obstructions from an artery includes  locating  a  housing  in  an  artery  with  an obstruction protruding into an opening in the housing, moving a razor sharp cylindrical shear across the opening to excise the obstruction,  encapsulating the excised obstruction in the housing, and removing the housing from the artery.
Patent CA-2046572-C (CA)
Title: Recording sheets
Inventor: MALHOTRA SHADI L
IPC: B41M5/50
Filed: 1991-07-09
Granted: 1996-08-06
Abstract: Disclosed is a recording sheet which comprises, in the order stated, an ink receiving layer, a base sheet, a heat absorbing layer, and an anticurl layer The recording sheet can be transparent or opaque, and can be used in a wide variety of printing and imaging processes. The recording sheet exhibits little or no curling, even after exposure to heat and/or a wide range of relative humidities.
Patent CA-2048385-C (CA)
Inventor: URBAS DONALD J
IPC: A61B5/00
Filed: 1991-08-02
Granted: 1998-12-01
Abstract: A passive transponder includes a receive antenna for receiving an input signal.  A frequency generator and modulator receives the input signal and outputs a data carrier signal having a  frequency  independent  of  the  input  signal  frequency.    A programmable memory and thermistor are provided to produce user ID data and temperature data which is combined with the output signal.
Patent CA-2048613-C (CA)
Title: Lipid absorption inhibitory composition
Inventor: ISHIHARA KAZUOKI
IPC: A61P3/06
Filed: 1991-01-09
Granted: 1995-05-23
Abstract: A lipid inhibitory composition comprising a fatty acid having 18 to 22 carbon atoms and one unsaturated double bond in the molecule as the active ingredient.
Patent CA-2052537-C (CA)
Inventor: BERNT JORGEN O
IPC: F27D1/14
Filed: 1991-09-30
Granted: 1999-12-07
Abstract: A rotary kiln assembly has steel plates lining the kiln are mounted on hangers projecting through the plates and overlie an insulation layer.
Patent CA-2053411-C (CA)
Title: Alkylene oxide catalysts having enhanced activity and/or stability
Inventor: LIU ALBERT CHENG-YU
IPC: B01J37/06
Filed: 1991-10-11
Granted: 1997-06-03
Abstract: Catalysts for the production of alkylene oxide by the epoxidation  of  alkene  with  oxygen  comprise  a  silver-containing  support,  and  a  sufficient  amount  of  cobalt component  to  enhance  at  least  one  of  activity  and/or efficiency and/or stability as compared to a similar catalyst which does not contain cobalt component.
Patent CA-2056339-C (CA)
Title: Filtered plug connector
Inventor: PFEIFER HANS-DIETER
IPC: H01R13/719
Filed: 1991-11-27
Granted: 1995-03-21
Abstract: The invention concerns a filtered plug connector comprising a housing and plug pins which are held therein. The  filtering  of  high-frequency  signals  to  ground  is achieved by multi-layer  ceramic  capacitors  electrically connected between the plug pins and a ground plate.  For mechanically fixing same,  the capacitors are resiliently clamped between the plug pins and bent, resilient portions which project from the ground plate adjacent openings in the ground plate through which the pins pass.
Patent CA-2057880-C (CA)
Title: Pressurized forming board
Inventor: SMITH DAVID THEODORE
IPC: D21F9/02
Filed: 1990-06-07
Granted: 1996-05-07
Abstract: A paper making machine forming board is described wherein the rate of drainage of the stock through the forming fabric is curtailed and controlled by applying a low positive air pressure above ambient atmosphere to the machine side of th: forming fabric. Additionally, a controlled level of agitation is induced in the stock on the forming board, providing better initial paper formation.
Patent CA-2064686-C (CA)
Title: Method for attribute tracking in seismic data
Inventor: HOWARD ROBERT E
IPC: G01V1/30
Filed: 1991-06-10
Granted: 1997-06-03
Abstract: A method for tracking seismic events such as boundaries of  formation  layers  of  earth  formations  is  disclosed. Especially  adapted  for  tracking  such  events  in  a  two-dimensional  slice  of  3-D  seismic  volume  data,  the method begins  by  designating  a  starting  data  point  (0)  on  the seismic event.  The method tracks such event through the grid of data by sequentially establishing areas or "tiles" of data about  the  starting point.   The tiles  are  defined by data points (1-8) of the grid.   Each of the data points is then tested to see if it meets an acceptance criterion for the seismic event.   Such data points of the tile are stored as identifying the  seismic event only if certain of the data points of the tile pass the acceptance criterion.  Next, each of the data points of a previously accepted tile are used as a starting data point about which a new tile is defined.  The process  is  repeated until no more tiles are available for testing.    The  accepted  data  is  then  displayed  so  as  to distinguish the  accepted data  from other data of the grid thereby   identifying   the   seismic   event   to   seismic interpretation specialists.
Patent CA-2064833-C (CA)
Inventor: MAGGARD STEVEN M
IPC: G01N21/35
Filed: 1990-07-20
Granted: 1996-04-23
Abstract: The near infrared absorbance of the methyne band measures octane (pump, RON, and MON) with excellent correlation and can be used for gasoline blending. The absorbance may be measured as the first, second, third, fourth or higher derivative or by other signal processing techniques. The signal can be used to control a multi-component gasoline blending system to produce a preset desired octane. Such continuous or frequent measurement of octane (research octane number, RON; motor octane num-ber, MON; and pump octane number (research plus motor times 0.5)) permits constant or frequent optimization of gasoline blending to produce a target octane which is sufficient to meet motorists' needs, yet uses minimum amounts of the more expen-sive high octane blending stocks.
Patent CA-2071388-C (CA)
Inventor: MCELROY LUCIAN G
IPC: B60S3/00
Filed: 1992-06-17
Granted: 1996-05-14
Abstract: A drying apparatus  (10)  for a vehicle washing system maintains blower air bags (18)  a predetermined distance from the vehicle without contacting same providing forced air against the vehicle.  Ultrasonic sensor (66) are provided on front and back sides of the nozzle (26) for sensing objects  within  a  predetermined  distance  in combination with control circuitry.   The control circuitry controls a motor (42) to retract a cord (36) to in turn raise or move out of the path of the vehicle,  the air bag  (18)  maintaining the predetermined  distance  from the vehicle.    The signals from each of the sensors  (66)  are each combined to control the motor.  The sensors (66) include  a  housing  for  supporting  same  with apertures  therethrough  for  transmissions  and reception  of  ultrasonic  signals.    The  housing includes sawtooth projections extending between the apertures  to  block  transmissions  from  direct reception by the receiver.
Patent CA-2074928-C (CA)
Title: Coating compositions and their use for the preparation of coatings permeable to water vapor
Inventor: PEDAIN JOSEF
IPC: C08G18/44
Filed: 1992-07-29
Granted: 2003-05-13
Abstract: This invention relates to coating compositions containing (A) a polyurethane system containing either a polyurethane containing ionic groups and polyethylene oxide units or a precursor thereof prepared from a blocked isocyanate prepolymer and a cross-linking agent and, optionally, (B) organic solvents. This invention further relates to the use of such coating compositions to prepare coatings that are permeable to water vapor.
Patent CA-2075385-C (CA)
Title: Method of forming fuel tank with baffle plates
Inventor: HIRAKAWA SADAMU
IPC: B29C49/04
Filed: 1991-12-05
Granted: 2001-08-28
Abstract: A method of molding a fuel tank wherein a pre-molded two pieces of baffle plates are mounted on a blow-pin which is then inserted in a molten parison of a thermoplastic resin, the split metal molds are closed under this condition, a pressurized fluid is fed thereto, and said baffle plates are melt-adhered onto the tank while it is being molded. This method makes it possible to provide two baffle plates in the fuel tank that is being molded and, hence, to produce a fuel tank without extremely thin portions.
Patent CA-2083491-C (CA)
Title: Quick brine equalization
Inventor: ADAMS JAMES RUSSELL
IPC: A23L19/20
Filed: 1992-03-26
Granted: 1997-02-18
Abstract: A process for packaging acidified vegetables without a covering brine includes sealing the brineless vegetables in an opaque package.  Central to the invention is a quick equalization brine treatment which is used to reduce the respiration rate of fresh vegetables and reduce their pH to less than about 4.5 in less than about 6 hours.
Patent CA-2089272-C (CA)
Title: Impact resistant combustor
Inventor: REINHOLD JAMES NORMAN JR
IPC: F23R3/42
Filed: 1993-02-11
Granted: 2002-09-03
Abstract: An impact resistant cowl structure for a gas turbine engine mounted in front of the combustor dome of the engine having a concave dish-like center for capturing incident debris which is bounded by a pair of forward protruding elbows that transition into outwardly and rearwardly extending mounting legs.
Patent CA-2090721-C (CA)
Inventor: RANOUX CLAUDE
IPC: A61B17/425
Filed: 1992-07-01
Granted: 2004-06-29
Abstract: Procédé de fécondation dans lequel on effectue une ponction ovocytaire et on introduit un ou plusieurs de ces ovocytes dans un conteneur renfermant un milieu de culture, sans interposition de l'a ir ou CO2, destiné à la fécondation et à la culture d'ovocyte(s), ainsi que des spermatozoïdes, et on introduit le conteneur une fois fermé dans la cavité vaginale ou dans l'utérus afin de permettre la fécondation du ou des ovocytes et de culture du ou des embryons. Le procédé est caractérisé en ce qu'il est réalisé sans stimulation du cycle, avec surveillance de la LH par des dosages sanguins et la programmation de la ponction ovocytaire en fonction de la valeur de la LH. Avant l'introduction du conteneur dans la cavité vaginale, il peut être maintenu pour maturation à une température de 37 .degree.C environ pendant 2 à 6 heures.
Patent CA-2092313-C (CA)
Inventor: HUFFMAN GLORIA
IPC: A61F13/15
Filed: 1991-10-25
Granted: 1995-11-21
Abstract: A disposable absorbent garment illustrated as a disposable diaper, includes a backsheet (26), an absorbent panel (28) posi-tioned on top of the backsheet, and a composite, three-component topsheet assembly (30) positioned on top of the absorbent pan-el. The topsheet assembly includes a central portion (32) generally overlying the absorbent panel, and a pair of side marginal por-tions (34) joined to opposite side edges of the central portion. Each side marginal portion includes a plurality of segments (36, 38, 40), including an elasticized, standing gather segment (40) for enhanced containment. The containment characteristics of the gar-ment are further enhanced by joining the central portion of the topsheet assembly to each side marginal portion in spaced rela-tionship to the associated backsheet of the garment at (52).
Patent CA-2093153-C (CA)
Title: Soft top
Inventor: GILBERT RANDY B
IPC: B62J17/00
Filed: 1993-04-01
Granted: 2005-01-11
Abstract: A retrofittable, removable enclosure assembly for a motorcycle, capable of use at and below highway speeds is provided. The enclosure assembly includes first and second pairs of detachable upright supports adapted to be substantially rigidly coupled to a forward and rearward guards of a motorcycle, a disassemblable frame element forming a rectangular tubular frame having forward and rearward pairs of supports adapted to removably engage respective detachable supports, a pair of angular supports adapted to removably and slidably engage the rectangular frame and the rearward pair of supports. A fabric cover component is adapted to be removably affixed to the rectangular frame and the windshield of the motorcycle. The fabric cover can be employed to provide top, top and front protection or to enclose the entire passenger region of the motorcycle. The enclosure assembly is also provided in a kit form.
Patent CA-2095446-C (CA)
Title: Method and system for accessing visually obscured data in a data processing system
Inventor: KRUEGER LEROY A
IPC: G06F3/048
Filed: 1993-05-04
Granted: 1998-06-23
Abstract: A method and system for accessing visually obscured data in a data  processing  system  having  a  computer  application displayed concurrently with a video image in a window which partially overlaps the computer application. The location of the video image within the window is maintained in relation to  the  visually  obscured  data  within  the  computer application.  The  video  image,  which  is  comprised  of  a plurality  of  lines  of  video  data,  is  then  temporarily altered to a translucent state by omitting selected lines of video data. This renders the video image partially visible, allowing the visually  obscured  data  within  the  computer application to be seen through the video image. The visually obscured data may now be visually accessed through the video image.
Patent CA-2096134-C (CA)
Title: Laminar clothing with breakout ties
Inventor: BACHOR EDITH
IPC: A41D13/00
Filed: 1991-11-08
Granted: 1996-05-21
Abstract: The invention relates to protective clothing (1) consisting of two layers of a web-like material, especially of foil or unwoven fabric, which are joined together at the two longitudinal edges (5,6) and at the most one transverse edge, with a first separating line (9a,9b) running from the transverse edge, which is surrounded by a seam (7a,7b) which, together with the longitudinal edges (5,6) form two tubular sections (3,4).  In such protective clothing, it is aimed to increase wearing comfort while retaining simplicity of use. To this end the first separating line (9a,9b) is arranged in such a way that,together with the transverse edge, it limits a substantially longitudinally extending web region (8) which has at least one longitudinal second separating line (10).
Patent CA-2096646-C (CA)
Title: Rapid pulse delivery diaphragm valve
Inventor: ELLIOTT JEFF
IPC: F16K31/40
Filed: 1992-09-21
Granted: 2002-01-29
Abstract: A large pilot-operated diaphragm valve (10) adapted to deliver a compressed air pulse from its outlet (16), comprising a valve top (20) and valve trigger assembly {62) co-operative to cycle a diaphragm (18) away from a seat (24) and back to the seat with an accurate response to a timed energisation applied to the valve trigger by an electric solenoid or external pneu-matic signal pulse. The valve top and trigger subassembly en-close a reciprocable hollow plunger (60) held against a seat (50) by a reciprocable solid plunger (68) held by spring force and pilot air pressure against a seat (61) positioned at one end of a hole (76) passing axially through the hollow plunger (60).     The valve (10) delivers a high energy pulse suitable for shak-ing dust collector bags or assisting particulate material out-flow from tapered outflow material storage hoppers and fea-tures an ability to deliver such pulses with less consumption of compressed air than a widely-used known equivalent duty two-stage diaphragm valve.
Patent CA-2098127-C (CA)
Title: Air inlet valve for water cooler
Inventor: FEENEY BRIAN
IPC: B67D3/00
Filed: 1993-06-10
Granted: 1997-03-18
Abstract: For use in a water cooler having a reservoir adapted to receive the neck portion of an inverted water tank, a filter system comprising an attachment removably connected to the neck and forming a water-tight seal therewith, a sleeve projecting from the attachment for receiving a replaceable water filter adapted to pass water from the tank into the reservoir, and a one-way valve projecting from the attachment for admitting air into the tank responsive to water flowing out of the tank via the water filter, the one-way valve including a movable bead adapted to prevent water from flowing therethrough while permitting air to pass therethrough.
Patent CA-2098773-C (CA)
Inventor: LEE ENG-HONG
IPC: A61K38/00
Filed: 1993-06-18
Granted: 1999-09-21
Abstract: The present invention provides for recombinant coccidia comprising a relatively non-pathogenic strain of coccidia to which has been introduced DNA from one or more other strains or species of coccidia. In an aspect of the invention, there is provided a recombinant coccidiosis vaccine comprising a relatively non-pathogenic strain of coccidia to which has been introduced sufficient DNA of one or more other strains or species of coccidia to produce immunity to the multiple species in a host through inoculation of the host by the recombinant species.
Patent CA-2102265-C (CA)
Inventor: REDMAN LEON E
IPC: A47K3/30
Filed: 1993-11-02
Granted: 1997-01-14
Abstract: A bathtub shower splash shield member which includes a shower curtain holding structure adapted for use with a bathtub for preventing water from a shower head from splashing between a wall and the adjacent side of a suspended shower curtain, said member comprised of a generally triangular shaped unitary body containing two general orthogonally arranged mounting legs that intersect at a vertex and a web extending between and joining said mounting legs.  The two mounting legs include a vertically extending leg adopted to be mounted on a wall structure and a horizontally extending leg adapted to be mounted on the flat horizontal surface of a side wall of the bathtub.    The shower curtain holding structure includes an opening extending through said vertically extending leg and a finger clamp disposed in this opening.  The finger clamp includes a clamping portion extending in a direction sway from said first leg.  The clamping portion cooperates with the web to grip a portion of the curtain between the clamping portion and the web.